The White House promoted an edited video on Wednesday to justify revoking Jim Acosta's press badge following the CNN reporter's questioning of President Donald Trump earlier that day. The video was earlier shared by the editor of InfoWars, whose founder has pushed conspiracy theories that the 2012 Sandy Hook shooting never occurred.

The video was tweeted Wednesday night by White House press secretary Sarah Sanders, claiming that Acosta's "inappropriate behavior" is "clearly documented in this video."

As controversy stirred over the video, Sanders on Thursday continued her defense.

"The question is: did the reporter make contact or not? The video is clear, he did. We stand by our statement," she said.

The video from Sanders' tweet purports to show a moment from a Wednesday exchange between Acosta and Trump, in which Acosta persisted in asking the president about the ongoing Russia investigation amid Trump's repeated refusals to answer.

In footage of the incident earlier published by NBC and others, a White House intern attempts to take the microphone out of Acosta's right hand, during which Acosta appears to lower his left hand to block the woman while apologizing, "Pardon me, ma'am."

But in the video posted by Sanders, Acosta's arm movement is sped up, making his apparent block appear more aggressive —– a fact noted by many respondents to Sanders' tweet.

We stand by our decision to revoke this individual’s hard pass. We will not tolerate the inappropriate behavior clearly documented in this video. pic.twitter.com/T8X1Ng912y

Within hours, videos comparing earlier footage and the video from Sanders' tweet showed a discrepancy when those moments of the White House-released video failed to match up to original footage.

"The clip being shared by the WH Press Secretary and Infowars has been slowed down then sped up to create the illusion of a karate chop," said Aymann Ismail, a video producer for Slate, in a series of tweets, adding that the "the intern's reach for the mic is slowed down, and the 'chop' motion is accelerated.

Further analysis: video is absolutely doctored. You can see the edit when the clips are side by side and slowed down to quarter speed. See for yourself: pic.twitter.com/4ZZrzhislg